I haven’t worked through the entire text but I absolutely love the manner of explaining. I often feel when I’m reading an explanation the author is reluctant t

I haven’t worked through the entire text but I absolutely love the manner of explaining. I often feel when I’m reading an explanation the author is reluctant to really break something down to the essentials and ELI5 ... which ironically can be conceptualized as the most intellectual way to understand something. Please explain it from as close to first principles as possible. Assume as little as possible. Maybe it is because the author thinks it is an intrinsically hard concept (as per the intro). Or maybe this person is just kinda awesome at explaining stuff.